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  • Title: Assisted fertilization in infertile women with patent fallopian tubes. A comparison of in-vitro fertilization, gamete intra-fallopian transfer and tubal embryo stage transfer.
    Author: Tanbo T, Dale PO, Abyholm T.
    Journal: Hum Reprod; 1990 Apr; 5(3):266-70. PubMed ID: 2351708.
    Abstract:
    A comparison of the relative efficacy of in-vitro fertilization with uterine embryo transfer (IVF), tubal embryo stage transfer (TEST) and gamete intra-Fallopian transfer (GIFT) was performed in infertile patients with patent Fallopian tubes. A total of 150 couples with unexplained infertility, peritoneal endometriosis or reduced semen quality were included in the study. The three groups were comparable with regard to age distribution, indications, semen parameters, stimulation regimens, response to stimulation and numbers of oocytes retrieved. In the IVF and TEST groups there was no cleavage in 24% and a cleavage rate of only 47.6%. The highest cleavage rate was obtained in the endometriosis patients. The pregnancy rate was highest in the two groups in which in-vitro fertilization was performed, IVF = 45.7%, TEST = 37.9%, GIFT = 26.2%. To obtain one live intrauterine fetus, more oocytes had to be transferred in the GIFT group compared to the number of embryos in the IVF group, 14.4 versus 6.2, P less than 0.05. Due to a high success rate of IVF but at the same time a high frequency of no cleavage in cases of unexplained infertility or male subfertility, we recommend IVF as the primary procedure in infertile couples with patent Fallopian tubes.
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